Sawn timber is delivered pre-packaged.
Dimensions roughly 1 m x 1 m x 1.8 - 6.0 m (height x width x length). A truck package can include any variety of lengths.
Dimensions roughly 1 m x 0.5 m x 1.8 - 6.0 m. A length package typically only contains one length.
Consumer package, a.k.a foil-packed timber. Typically contains small amounts of one length wrapped in foil.